@b6hydra I dont. Even on cave dives where the space is pretty tight I am still pretty comfortable. I am sure some people do, but those people probably wouldnt SCUBA dive in the first place.
That said I will say this, BEFORE I learned to SCUBA I would feel something you might call agoraphobia when I was swimming in the middle of the ocean with no visible bottom. Though Diving in areas like that quickly cured me of those feelings.
Not related to agoraphobia or claustraphobia I can say your first few dives can be scary, my first 10 were. But the fear is more like "If my equipment breaks and my dive buddy doesnt see me I might die". Thats a healthy fear though and ultimately is what lead me to go tech because in tech you have a backup for everything, even tanks.
@freemo Something I've wondered about going on dives, especially when you get into the hundreds of feet... Do you ever experience claustrophobia or agoraphobia?
Hope it's not a dumb question haha, I understand you don't go 60m on the first try. It just seems like between the constraints of the gear and the openness of the water there's a greater opportunity for a panic response to take over.